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Variables affecting the fracture toughness of resin‐based inlay/onlay systems
Author(s) -
ÜÇTAŞLI S.,
WILSON H.J.,
ZAIMOGLU L.
Publication year - 1993
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.1993.tb01626.x
Subject(s) - inlay , fracture toughness , dentistry , composite material , materials science , orthodontics , medicine
The fracture toughness of five different resin‐based inlay/onlay materials was investigated by means of critical stress intensity factor (K IC ) using the SEN three‐point bending test procedure (BS 5447: 1977). K IC values were determined from specimens prepared by both the direct and indirect techniques. Tests were performed immediately, after 1 day, 1 month and 3 month time intervals. Also, fractured surfaces of specimens were observed using SEM photographs.